
Sound Insulated Inspection Hatch, Magnetic Fixings | dB
Sound Insulated Inspection Hatch with Magnetic Fixings | PMLdB
The Kiilax magnetic inspection hatch is also available with sound insulation. Sound-insulating wool is fitted to the inside of the cover, leaving space around the edges for the magnetic fixings.
The cover lifts easily off its magnetic fixings and requires approximately 40 mm of clearance in front. The insulating wool can be shaped to suit the installation opening, including round openings.
- Quick installation with magnetic fixings
- Airborne sound insulation tested
- Material: hot-dip galvanised steel
- Powder-coated in RAL 9010, fine-textured matt white
- Custom sizes and colours available on request
- Made in Finland – Key Flag product
- The open cover can hang from its suspension system while you work, so there is no need to carry it down separately
| Product code | Cover outer dimensions (mm) | Installation opening (mm) | Fixings (pcs) |
| PML1515dB | 150x150 | 100x100 | 4 |
| PML2020dB | 200x200 | 150x150 | 4 |
| PML2525dB | 250x250 | 200x200 | 4 |
| PML2535dB* | 250x350 | 200x300 | 6 |
| PML2550dB* | 250x500 | 200x450 | 8 |
| PML3030dB | 300x300 | 250x250 | 6 |
| PML3535dB | 350x350 | 300x300 | 8 |
| PML3545dB* | 350x450 | 300x400 | 8 |
| PML3555dB* | 350x550 | 300x500 | 10 |
| PML3565dB* | 350x650 | 300x600 | 12 |
| PML4040dB | 400x400 | 350x350 | 8 |
| PML4545dB | 450x450 | 400x400 | 10 |
| PML4565dB* | 450x650 | 400x600 | 14 |
| PML5050dB | 500x500 | 450x450 | 12 |
| PML5555dB | 550x550 | 500x500 | 14 |
| PML6060dB | 600x600 | 550x550 | 16 |
| PML6565dB | 650x650 | 600x600 | 18 |
| PML7070dB* | 700x700 | 650x650 | 22 |
| *Check availability |
Installation instructions | PMLdB
Cover outer dimensions = nominal size of the cover
Size of the installation opening = nominal size of the cover –50 mm
Depth 40 mm inwards from the installation surface
There are several easy mounting options for fixing:
- Standard fixing for 13–16 mm structure (plasterboard, panel, furniture board)
- U24 fixing for 24 mm structure (double-layered plasterboard)
- Spring fixing for 8–24 mm structure (thickness varies on the sides of the opening)
- L-fixing for thick construction (screwed into concrete or stud from the inside of the opening)
Sound insulation of PMLdB | tested according to SFS-EN ISO 10140-2 and ISO 717-1
PML2525dB / installation opening 200×200 – 46 dB Dn,e,w[dB]
PML6565dB / installation opening 600×600 – 43 dB Dn,e,w[dB]
Custom sizes and colours available on request









